Hi guys,
does anybody know how FBI does the background check for naturalization? Do they get info only by the fingerprints or they use some othet methods as well. How do they check the applicants past in his home country? What is the CIS? What does CIS do? Any help is appreciated.

Hi guys,
does anybody know how FBI does the background check for naturalization? Do they get info only by the fingerprints or they use some othet methods as well. How do they check the applicants past in his home country? What is the CIS? What does CIS do? Any help is appreciated.